Shimano Ultegra Di2 ST-6870 Road Bike Shifters 11 Speed

Slimmer, smaller and more ergonomic, the Shimano Ultegra Di2 ST-6870 Shifters are easier to reach, offer more control and deliver lightning-quick shifts through 11 speeds. Slimmer brake levers with a closer pivot location are lighter, give better braking modulation and increase control from multiple hand positions. Redesigned shift buttons are easier to access from the top of the hoods. When programmed at the E-TUBE platform, you can customize how many gear changes a press and hold actuates. Choose from five shifting speeds, ranging from very slow to very fast. Reach adjust mechanism fits different sized hands, plus a wide assortment of bar ends. Automatic trim function makes riding stress-free. Di2 electronic system guarantees easier, effortless, faster and more precise gear changes in demanding conditions.

Shimano Electronic Intelligence System:

Allows accurate and effortless shifting in challenging circumstances, like when you have cold hands or when you're completely exhausted

Shifting performance is never affected by contaminated or stretched cables, since the shifting signal is transferred electronically

Operating buttons work similarly to mechanical Dual Control Levers, so you don't need to learn a new system

SLR-EV with dual symmetric pivot brake caliper:

Short-arm brake design employs 2 bearings and a roller for greater efficiency in the pivot area and delivers superior modulation and power for braking

Instant, accurate shifts

Improved ergonomics for easier access to the shift buttons from the top of the hoods